Best 6 Inch Twin Mattresses: Top 9 Picks (November 2026)

The best 6 inch twin mattresses include the EGOHOME 6 Inch Twin Mattress for Kids for medium-firm kids' comfort, the EGOHOME 5 Inch Twin Mattress for Kids for the tightest bed clearance, and the Best Price Mattress 6 inch Twin Mattress for layered green tea foam.

On this page (13 sections)

1. The best 6 inch twin mattresses by use
2. 1. EGOHOME 6 Inch Twin Mattress for Kids
3. 2. EGOHOME 5 Inch Twin Mattress for Kids
4. 3. Best Price Mattress 6 inch Twin Mattress
5. 4. Novilla Twin Mattress
6. 5. FDW
7. 6. Zinus 6 Inch Twin Foam and Spring Hybrid Mattress
8. 7. Zinus 6 Inch Twin Green Tea Memory Foam Mattress
9. 8. Amazon Basics Soft Plush Feel Memory Foam Mattress
10. 9. Lucid 6 Inch Gel Memory Foam Mattress
11. How to choose a 6 inch twin mattress
12. Are 6 inch twin mattresses good for adults?
13. Verdict: which 6 inch twin mattress should you buy?

The best 6 inch twin mattress for most shoppers is the EGOHOME 6 Inch Twin Mattress for Kids, because its medium-firm green tea memory foam gives a low bed a balanced surface without adding much height. That mix suits a child who needs steady support but does not need a tall mattress stack.

Choose the 5 inch EGOHOME for tighter clearance, the Zinus hybrid for coils, or Amazon Basics for a plush feel. Each choice changes how the bed feels at night and how much room remains above the mattress.

This roundup covers 6 inch twin mattresses and one 5 inch option for beds with especially strict height limits. The focus stays on low-profile beds that still need a proper sleeping surface.

These sizes can work for kids' rooms, bunk beds, trundle beds, dorms, RVs and low platforms, but the frame must be measured first. A mattress that looks right on paper can sit too high once the base is added.

Measure the inside length and width of the frame, then check the total height from the floor. That step prevents a common mistake with bunk beds and trundles, where guardrails and roll-in openings leave very little space.

If you need a shorter mattress height, compare this guide with our best low profile mattress picks. Those options may suit frames that cannot take even 6 inches safely.

Our guide to what is a low profile mattress set also explains how the mattress and base combine to affect the final bed height. Reading both guides can help you decide whether the limit is the mattress itself or the full bed setup.

Our picks at a glance

1. 1
   Best for medium-firm kids' comfort

   EGOHOME 6 Inch Twin Mattress for Kids

   9.6/10 our score

   See it on Amazon
2. 2
   Best for the tightest bed clearance

   EGOHOME 5 Inch Twin Mattress for Kids

   9.4/10 our score

   See it on Amazon
3. 3
   Best for layered green tea foam

   Best Price Mattress 6 inch Twin Mattress

   9.3/10 our score

   See it on Amazon

4. 4

   Novilla Twin Mattress

   Best for cooling foam layers
   Check it
5. 5

   FDW

   Best for a washable cover
   Check it
6. 6

   Zinus 6 Inch Twin Foam and Spring

   Best for coil support
   Check it
7. 7

   Zinus 6 Inch Twin Green Tea Memory

   Best for fresh-feeling foam
   Check it
8. 8

   Amazon Basics Soft Plush Feel Memory Foam

   Best for a plush feel
   Check it
9. 9

   Lucid 6 Inch Gel Memory Foam Mattress

   Best for bunk beds and RVs
   Check it

The best 6 inch twin mattresses by use

The best 6 inch twin mattress depends on feel, frame clearance and support style. A plush sleeper and a firm sleeper will judge the same foam very differently.

Foam models are usually quieter and contour more closely. The hybrid adds interconnected coils for a more traditional response, which changes movement at night and support under the hips and shoulders.

Clearance matters as much as comfort. A mattress can feel right in a bedroom and still push a bunk bed sleeper too close to the guardrail.

All-foam models tend to feel still and contained. Coil models can feel lighter and easier to move on.

We compared stated dimensions, materials, thickness, feel, setup details, support and features for low-profile twin beds. We used exact measurements rather than the twin label alone, since small differences matter in tight frames.

We also checked cover type, because a washable or removable cover can matter in a child room, dorm or guest room. Care needs are part of comfort, especially where spills and frequent sheet changes are likely.

Our score weighs specs, features and buyer feedback against your shopping needs. A high score does not override a frame limit or a stated weight capacity.

Setup time also matters. Some models need up to 72 hours to air out and reshape, so the bed may not be ready on the day it arrives.

Start with measurements, then narrow the list by feel and support style. The goal is to match the mattress to the bed, the room and the sleeper.

1. EGOHOME 6 Inch Twin Mattress for Kids

1

EGOHOME 6 Inch Twin Mattress for Kids: Best for medium-firm kids' comfort

9.6/10Our score

• 6 inch profile
• Medium firm feel
• Green tea gel memory foam
• 75 x 38 x 6 inches

This low-profile twin uses green tea gel memory foam and a breathable bubble-hole structure. Its medium-firm feel suits a child's bed where height, pressure relief and quiet movement all matter.

See it on Amazon

Pros

• Medium firm feel
• Breathable construction
• CertiPUR-US certified foam

Cons

• Designed for a kid age range
• Memory foam may not suit shoppers wanting spring response

The EGOHOME 6 Inch Twin Mattress for Kids is the top pick for a child who needs a standard-height low-profile mattress with a medium-firm memory foam feel. It measures 75 x 38 x 6 inches and uses gel memory foam with a polyester blend cover.

The green tea gel and bubble-hole structure are the main reasons to consider it for a warmer room. EGOHOME describes the construction as breathable and temperature regulating, so it may suit sleepers who prefer foam with airflow-focused features.

The medium-firm feel is more balanced than a plush surface. It can suit different sleep positions, while the memory foam design is intended to reduce noise from turning.

The foam is CertiPUR-US certified, and EGOHOME includes a 10-year warranty.

This is a strong choice when you want a 6 inch single mattress for a child's room and don't need spring response. Check the bed frame's inside dimensions before ordering, especially if the frame is marked for a narrower twin.

2. EGOHOME 5 Inch Twin Mattress for Kids

2

EGOHOME 5 Inch Twin Mattress for Kids: Best for the tightest bed clearance

9.4/10Our score

• 5 inch profile
• Medium firm feel
• Green tea gel memory foam
• 75 x 38 x 5 inches

This is the shortest mattress in the group, making it useful when a bunk, trundle or platform has a strict height limit. It keeps a medium-firm memory foam feel in a 5 inch profile.

See it on Amazon

Pros

• Shortest profile here
• Medium firm support
• Green tea gel memory foam

Cons

• Less height than the 6 inch picks
• Designed for a kid age range

The EGOHOME 5 Inch Twin Mattress for Kids is the best fit when every inch of clearance matters. It measures 75 x 38 x 5 inches, making it the shortest mattress in this roundup while keeping a medium-firm feel.

Its gel memory foam includes green tea gel and a breathable bubble-hole structure. EGOHOME also describes the foam as pressure relieving and temperature regulating, which may appeal to a child who prefers a close-fitting foam surface.

The extra inch of clearance compared with a 6 inch mattress can matter on a bunk bed or trundle. Add the mattress height to the frame and foundation height, then compare that total with guardrail or opening limits.

Choose this model when the frame specifically calls for a 5 inch mattress or when the lowest possible profile is the priority. If you can use 6 inches safely, the taller EGOHOME may give you a little more material beneath the sleeper.

3. Best Price Mattress 6 inch Twin Mattress

3

Best Price Mattress 6 inch Twin Mattress: Best for layered green tea foam

9.3/10Our score

• 6 inch profile
• Medium feel
• Green tea infusion
• Memory foam, support foam and high-density foam

A layered foam build combines memory foam with support foam and a high-density base. The medium feel gives this twin a balanced option for shoppers who want contouring without a plush profile.

See it on Amazon

Pros

• Layered foam construction
• Green tea infusion
• 10-year warranty

Cons

• No coil layer
• The dimensions differ slightly between fields

The Best Price Mattress 6 inch Twin Mattress suits shoppers who want layered foam with a medium feel. Its construction combines memory foam, support foam and a high-density base, while the listed dimensions are 75 x 38 x 6 inches.

Green tea infusion is part of the comfort design. The memory foam molds to the body, and the layered build aims to spread weight across the surface.

That can be useful when you want contouring without choosing the softer plush feel of the Amazon Basics mattress.

The Jacquard cover gives it a different surface material from the polyester covers on several other picks. Best Price Mattress uses CertiPUR-US certified foams and includes a 10-year warranty.

This is a good 6 inch mattress single option for a guest room, child's room or low platform where a medium foam feel works. The product dimensions include a slightly different width in one field, so measure the frame and confirm the exact fit before buying.

4. Novilla Twin Mattress

4

Novilla Twin Mattress: Best for cooling foam layers

9.2/10Our score

• 6 inch profile
• Medium feel
• Gel memory foam and high-density foam
• Four foam layers

Novilla uses four foam layers, NanoGel and high-density foam in a 6 inch twin. It suits buyers who want low motion transfer and a cooling-focused foam design.

See it on Amazon

Pros

• Four foam layers
• NanoGel cooling focus
• 10-year protection

Cons

• Requires up to 72 hours to air out and reshape
• No coil response

The Novilla Twin Mattress is the best cooling-focused all-foam choice in this group. It measures 75 x 38 x 6 inches and uses gel memory foam, comfort foam and high-density foam in a four-layer design.

Novilla adds NanoGel and describes the mattress as breathable and temperature regulating. The gel foam is meant to draw heat away from the surface, which may help a warmer sleeper feel less sticky during the night.

The four foam layers also focus on absorbing movement, which may help when two sleepers share a room and one moves during the night. That design can suit a guest bed or a twin used by a restless sleeper.

This mattress arrives vacuum-compressed in a box. Novilla recommends giving it 72 hours to air out and reshape, so plan that time before putting on sheets or using the bed.

The medium feel gives it a middle position between the plush Amazon Basics model and firmer-feeling choices. It suits an adult or older child who wants a 6 inch mattress twin with low motion transfer and a foam surface.

The cover uses a breathable knitted fabric, which adds to the cooling focus at the surface. A breathable cover and a fitted sheet that is not too heavy can help the mattress feel cooler in daily use.

Use a flat, supportive base and allow airflow around the mattress where possible. That care step supports freshness and helps the foam keep its intended shape over time.

5. FDW

5

FDW: Best for a washable cover

9.1/10Our score

• 6 inch profile
• Medium feel
• 1 inch gel memory foam
• 5 inch high-density base foam

FDW pairs 1 inch of gel memory foam with 5 inches of high-density base foam. Its removable, washable cover gives this twin a practical advantage for rooms where routine cleaning matters.

See it on Amazon

Pros

• Removable washable cover
• Clear two-layer design
• CertiPUR-US certified

Cons

• Only a 3-month warranty
• No spring layer

FDW stands out for its simple two-layer design and removable washable cover. The 6 inch twin has 1 inch of gel memory foam over 5 inches of high-density base foam, with a medium feel and 75 x 38 x 6 inch dimensions.

The gel layer is the main comfort feature. FDW describes it as ventilated and temperature regulating, while the base foam supplies most of the mattress height and stable support.

The cover unzips for machine washing, which makes this a practical pick for a child's room, dorm or guest bed. The mattress comes as 1 mattress and expands after being unboxed and unrolled.

FDW says to allow up to 72 hours for full expansion.

This is the most useful choice here if cover care is a deciding factor. The trade-off is the short 3-month warranty, which is less generous than the 10-year warranties attached to several other products in this roundup.

6. Zinus 6 Inch Twin Foam and Spring Hybrid Mattress

6

Zinus 6 Inch Twin Foam and Spring: Best for coil support

8.8/10Our score

• 6 inch profile
• Medium firm feel
• Interconnected steel coils
• 250 lb twin capacity

This hybrid combines foam with interconnected Bonnell coils for a more traditional support feel. Zinus states that the twin supports up to 250 lb, which makes the stated capacity a key buying check.

See it on Amazon

Pros

• Steel coil support
• Medium firm feel
• 10-year limited warranty

Cons

• Heavier than the all-foam options
• Less contouring than an all-foam design may suit some sleepers

The Zinus 6 Inch Twin Foam and Spring Hybrid Mattress is the best 6 inch twin mattress here for shoppers who want coil support in a low profile. It combines foam with interconnected Bonnell coils and has a medium-firm feel.

The twin measures 75 x 39 x 6 inches and supports a maximum weight of 250 lb, according to Zinus. That stated limit should be part of your decision if the mattress will be used by a heavier teen or adult.

A hybrid can feel different from all-foam models because the coils add a more traditional response. The interconnected steel design supplies support from head to toe, while the foam layer adds cushioning above the springs.

This model weighs 28.9 lb, making it heavier than the listed all-foam picks. It includes a 10-year limited warranty and uses CertiPUR-US certified foam with an OEKO-TEX certified cover.

7. Zinus 6 Inch Twin Green Tea Memory Foam Mattress

7

Zinus 6 Inch Twin Green Tea Memory: Best for fresh-feeling foam

8.5/10Our score

• 6 inch profile
• Medium feel
• Green tea and charcoal infused memory foam
• CertiPUR-US certified foam

Green tea and charcoal infused memory foam give this Zinus twin a fresh-feeling design. It suits shoppers who want a medium foam surface and a familiar 6 inch height.

See it on Amazon

Pros

• Green tea and charcoal infusion
• Medium feel
• 10-year limited warranty

Cons

• No gel foam
• Twin supports up to 250 lb

The Zinus 6 Inch Twin Green Tea Memory Foam Mattress is a medium-feel foam option with green tea and charcoal infusion. It measures 75 x 39 x 6 inches and uses a memory foam construction with a polyester cover.

Zinus describes the foam as pressure relieving and says the green tea and charcoal help the mattress feel fresh. The base foam is designed to reduce pressure points, while open air pockets in the comfort foam support airflow.

The twin supports up to 250 lb, and Zinus includes a 10-year limited warranty. It is compatible with a box spring, so check the base before setup and make sure the combined bed height remains within the room's limits.

Choose this mattress when you want a familiar green tea foam design but don't need gel foam. The Amazon Basics mattress is softer, while this Zinus option is the better match for a medium feel.

8. Amazon Basics Soft Plush Feel Memory Foam Mattress

8

Amazon Basics Soft Plush Feel Memory Foam: Best for a plush feel

8.4/10Our score

• 6 inch profile
• Plush feel
• 2 inches of gel memory foam
• 4 inches of flex comfort support foam

Amazon Basics puts 2 inches of gel memory foam over 4 inches of flex comfort support foam. Choose it when a softer, more cushioning surface matters more than a firmer feel.

See it on Amazon

Pros

• Plush feel
• 2 inch gel memory foam layer
• Removable cover

Cons

• Not a medium-firm choice
• No stated warranty in the supplied product information

The Amazon Basics Soft Plush Feel Memory Foam Mattress is the clear choice for a softer 6 inch twin surface. It measures 75 x 39 x 6 inches and combines 2 inches of gel memory foam with 4 inches of flex comfort support foam.

The plush feel may suit side, back and stomach sleepers who prefer more cushioning at the surface. The thicker gel layer gives the top of the mattress a softer first impression than the thinner gel layers on some other picks.

The gel memory foam conforms to the body, while the wave-shaped support layer is designed to encourage airflow. That airflow feature is meant to help the bed feel less warm and more breathable during sleep.

A removable cover with a zipper supports routine cleaning. Washing the cover on a regular schedule can help keep the sleeping surface fresh in a dorm, guest room or child room.

The mattress arrives compressed and rolled in a box, and Amazon Basics describes it as compatible with most twin bases and frames, including a floor bed. For a floor setup, place it on a clean, dry surface and lift it now and then for airflow underneath.

Choose this model if plush comfort is more important than medium-firm support. If the sleeper prefers a stable, less yielding surface, the EGOHOME, FDW or Zinus medium options are better matches.

9. Lucid 6 Inch Gel Memory Foam Mattress

9

Lucid 6 Inch Gel Memory Foam Mattress: Best for bunk beds and RVs

8.3/10Our score

• 6 inch profile
• Medium firm feel
• 1 inch gel and bamboo charcoal foam
• 5 inch supportive base foam

Lucid uses a 6 inch low-profile design with 1 inch of ventilated gel and bamboo charcoal foam over 5 inches of base foam. Its stated dimensions suit buyers measuring bunk, trundle or RV spaces carefully.

See it on Amazon

Pros

• Low-profile design
• Fiberglass free
• 10-year warranty

Cons

• Shorter and narrower than standard twin dimensions
• Best suited to stomach and back sleepers according to the product description

The Lucid 6 Inch Gel Memory Foam Mattress is the best choice for a bunk bed, trundle or RV when the stated dimensions fit. It measures 74 x 37.5 x 6 inches, so it is shorter and narrower than the other twin options here.

Its 1 inch of ventilated gel and bamboo charcoal foam sits over 5 inches of supportive base foam. The gel layer is meant to help the surface feel cooler, while the charcoal is described as helping absorb odors and keep the bed feeling fresh.

Lucid describes the feel as medium firm and says the design is especially suited to stomach and back sleepers. That profile can suit a sleeper who wants support without sinking deeply into the surface.

The low profile helps preserve clearance around a bunk guardrail or trundle opening. In an RV, that same low height can also make the sleeping area easier to use without crowding the space above.

It also arrives compressed in a box, and Lucid recommends allowing 24 to 48 hours for full expansion. A warm room may help it expand more quickly, but the full time allowance is still worth planning for.

Measure carefully because this mattress is not the same length and width as the 75 x 38 or 75 x 39 inch options. It is fiberglass free, CertiPUR-US certified and backed by a 10-year warranty.

How to choose a 6 inch twin mattress

Choose the mattress height by measuring the bed frame first. A 6 inch mattress is not automatically safe for every bunk or trundle, because the mattress, foundation and frame all contribute to the final sleeping height.

A 5 inch single mattress may be the better choice when guardrail clearance is tight. The EGOHOME 5 Inch Twin Mattress for Kids is the only 5 inch option in this group, while the other models add another inch of height.

Should you choose foam or a hybrid?

Choose memory foam if you want contouring, quiet movement and a low-profile design. The foam options here include green tea, gel, charcoal and high-density foam, but their feels range from plush to medium firm.

Choose the Zinus hybrid if you prefer interconnected steel coils beneath foam. Its 250 lb twin capacity is a specific limit to consider, and the mattress is heavier than the all-foam models.

Which feel is best?

A medium-firm mattress is the safest starting point when sleepers have different preferences. EGOHOME, Lucid and Zinus Foam and Spring use medium-firm language, while Best Price Mattress, Novilla, FDW and Zinus Green Tea use a medium feel.

Amazon Basics is the plush option. It may suit someone who wants more surface cushioning, but it is not the right match if you prefer a firmer, more stable feel.

People with ongoing back pain or sleep problems should ask a qualified health professional for advice rather than treating a mattress choice as medical care.

How should you set up a mattress in a box?

Clear a path to the bed before opening the box, place the rolled mattress on the frame, and follow the brand's expansion instructions. Keep the sleep surface clear while it reshapes so the foam can reach its intended height.

Novilla recommends up to 72 hours to air out and reshape. Lucid recommends 24 to 48 hours, while FDW says it can fully expand within 72 hours.

These timelines differ, so use the instructions for the exact model you choose.

Use a supportive, level base that matches the mattress and frame requirements. For a floor bed, protect the underside from moisture and lift the mattress regularly for airflow.

What else should you compare?

Compare the exact length and width, not only the word twin. Most picks are 75 inches long and 38 or 39 inches wide, but Lucid is 74 x 37.5 inches.

Then check the cover, warranty, material and care needs. FDW has a removable washable cover, Amazon Basics has a removable cover, the hybrid adds coils, and several models include 10-year warranty coverage.

For a taller twin, compare these picks with the best 8 inch twin mattress guide. If you are choosing by height across sizes, the best 6 inch mattress roundup covers more than twin beds.

Are 6 inch twin mattresses good for adults?

A 6 inch twin mattress can work for an adult when size, feel, support and stated capacity fit the sleeper. It can suit an adult who sleeps alone in a twin room, dorm or guest bed.

The Zinus Foam and Spring and Zinus Green Tea models state a 250 lb twin capacity. The other product information here does not give a specific weight limit, so do not skip that check.

Adults may prefer the Zinus hybrid for coil support or Novilla for its four-layer foam design. The hybrid gives a more traditional response, while Novilla gives a still, contouring foam feel with low motion transfer.

A 6 inch mattress leaves less room for comfort layers than a taller mattress. Body weight and preferred firmness therefore matter more, and a sleeper who likes a deep, plush sink may find a low-profile foam bed less forgiving.

Side sleepers should consider shoulder and hip cushioning. A plush model may feel softer at the surface, while a medium-firm model may feel more stable and supportive.

Back and stomach sleepers often prefer a medium or medium-firm surface that keeps the body from sinking too far. The right choice depends on how much contouring the sleeper wants at the shoulder, waist and hips.

An adult using a bunk bed or trundle should check total bed height. The mattress may be only 6 inches, but the frame, base and bedding add to the final height.

For a guest room, a removable or washable cover can make routine care easier. FDW and Amazon Basics both offer that practical advantage for shared beds.

For a full-size low-profile bed, see the guide to the best 8 inch full size mattress. That size gives more width for an adult sleeper while still keeping a low profile.

For a taller twin surface, compare the best 10 inch twin mattress options. A taller mattress may suit a standard bed frame better than a bunk or trundle.

The main trade-off is height versus cushioning. It works well in tight spaces, but an adult who wants more depth should compare taller options or a coil hybrid.

Verdict: which 6 inch twin mattress should you buy?

The EGOHOME 6 Inch Twin Mattress for Kids is the best 6 inch twin mattress for a medium-firm, kid-focused foam bed with green tea gel and a breathable design. It gives a child room a low-profile surface without making the bed feel too tall.

Pick the EGOHOME 5 inch model if the frame has a strict height limit. That extra inch of clearance can matter on a bunk bed or trundle where the guardrail leaves little room.

Choose Best Price Mattress or Novilla for layered foam, FDW for a removable washable cover, and Amazon Basics for a plush surface. Each pick solves a different problem in a low-profile twin bed.

Choose Zinus Foam and Spring for coils, Zinus Green Tea for infused memory foam, or Lucid when a bunk, trundle or RV requires its shorter twin dimensions. Those choices are about support style and exact fit more than height alone.

For a child who likes a stable surface, the medium-firm EGOHOME is the safer starting point. For a sleeper who wants a softer top layer, Amazon Basics is the plush option in this group.

For a warmer sleeper, gel and breathable designs may feel more comfortable at night. Novilla, FDW, Lucid and Amazon Basics all use gel foam, though their feels differ.

Before ordering, measure the frame and check the mattress expansion time. A bed-in-a-box may need 24 to 72 hours before it is ready for sheets and regular use.

For a larger low-profile bed, compare the best 8 inch mattress queen guide and measure the frame before choosing any mattress height. The right pick fits the bed, suits the sleeper and leaves safe clearance above the mattress.

Our top 3 picks at a glance

1. 1
   Best for medium-firm kids' comfort

   EGOHOME 6 Inch Twin Mattress for Kids

   9.6/10 our score

   See it on Amazon
2. 2
   Best for the tightest bed clearance

   EGOHOME 5 Inch Twin Mattress for Kids

   9.4/10 our score

   See it on Amazon
3. 3
   Best for layered green tea foam

   Best Price Mattress 6 inch Twin Mattress

   9.3/10 our score

   See it on Amazon

Frequently asked questions

Is a 6 inch twin mattress thick enough?

A 6 inch twin mattress can work well on a bunk bed, trundle, RV bed or low platform when the frame supports a low profile. It offers less material than a taller mattress, so check the sleeper's size, the frame's support requirements and the mattress height limit before buying.

What is the best 6 inch twin mattress for a child?

The EGOHOME 6 Inch Twin Mattress for Kids is the strongest match here because it combines a kid-focused age range, a medium-firm feel, green tea gel memory foam and a 75 x 38 x 6 inch size. The 5 inch EGOHOME is better when clearance is especially tight.

Can a 6 inch twin mattress fit a bunk bed?

Yes, a 6 inch twin mattress can fit many bunk beds, but the frame's maximum mattress height controls the decision. Measure the existing mattress area and check the guardrail clearance.

Lucid also describes its 6 inch design as suitable for bunk beds, RVs and trundle frames.

What is the difference between a twin and single mattress?

Twin and single mattress usually describe the same bed size in the United States. The products here are mostly about 75 inches long and 38 or 39 inches wide, but Lucid is 74 x 37.5 inches.

Measure the frame instead of relying on the name alone.

How long should a compressed mattress expand?

Follow the product's instructions after opening a mattress in a box. Novilla recommends up to 72 hours to air out and reshape, while Lucid says to allow 24 to 48 hours for full expansion.

Keep bedding off until the mattress reaches its intended shape.