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Member's Mark 8" Medium Firm Memory Foam Mattress

|65 ratings
Item # 990391625
Current price is Now $149.00
was $179.00
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Ends Nov 01
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Highlights

  • Feel: Medium-firm
  • Height: 8 in
  • Sizes: Twin/Full/Queen/King
  • Foam Type: Copper graphite memory
  • Frame Fit: Box/platform/adjustable
  • Warranty: 5-year limited

  • Available in Twin, Full, Queen, and King sizes
  • Backed by Sam’s Club with a 5-year limited warranty and Satisfaction Guarantee
  • Delivered to your address or available in club
  • Medium-firm memory foam support for balanced comfort at an affordable value
  • Medium feel works for back, side, or stomach sleepers
  • Compatible with most bed frames, including box springs, platform beds, and adjustable bases
  • 8" profile for dependable comfort night after night
  • Copper graphite memory foam cushions pressure points and helps draw heat away
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Sponsored
member's mark 8" medium memory foam mattress centered front view on a wooden platform bed in a sunlit bedroom; charcoal-gray knit side panel with Member's Mark logo, white quilted top with circular stitch patterns, 8-inch profile visible, neutral pillows and headboard — medium feel suitable for back, side, and stomach sleepers, copper graphite memory foam helps draw heat away and provides pressure relief, compatible with box springs, platforms, and adjustable bases, often used in guest rooms or first apartments.
Member's Mark 8" Medium Firm Memory Foam Mattress
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About this item

Product details

The Member’s Mark™ 8" Medium Memory Foam Mattress delivers balanced, medium-firm comfort at an affordable value, with dependable support for everyday sleep.

Balanced Medium-Firm Comfort for All Sleep Positions

  • This 8" memory foam mattress features a medium feel that suits back, side, and stomach sleepers.
  • The supportive, pressure-relieving foam helps cushion common pressure points like hips and shoulders for more comfortable rest.
  • The versatile feel makes it a practical choice for everyday bedrooms, guest rooms, first apartments, and kids’ rooms.

Copper Graphite Memory Foam Cooling Comfort

  • Copper graphite memory foam gently adapts to your body to provide cradling comfort and balanced support.
  • The copper graphite memory foam helps draw heat away from your body to maintain more consistent comfort through the night.

Flexible Setup with Common Bed Bases

  • This mattress is compatible with most bed frames, including box springs, platform beds, and adjustable bases.
  • Convenient purchase options include delivery to your address or availability in club.

Confidence Backed by Sam’s Club

  • The mattress is backed by Sam’s Club with a 5-year limited warranty.
  • Sam’s Club Satisfaction Guarantee is included for added peace of mind.

Sizes for Every Room

  • Available sizes include Twin, Full, Queen, and King to fit a range of spaces, from kids’ rooms to primary bedrooms.

Member’s Mark Made Without Commitment™

This item meets our Member’s Mark Made Without Commitment™: Our Member’s Mark Made Without Commitment makes it easier to know what is not in our products, so members can feel better about what is. We simplify the choice for our members by setting a high brand standard for the products they bring into their homes. This isn’t list a list of ingredients, it’s our commitment to simpler ingredients that reflect our members' values. And we deliver this without compromising taste, performance, or value. This means that this item doesn’t contain the 40+ ingredients on our Made Without Commitment list like High Fructose Corn Syrup, Phthalates, Talc, Certified Synthetic Colors/ FD&C Colors, and Formaldehyde. See the full list of ingredients here: https://www.samsclub.com/cp/members-mark-goals/30001929. 

Frequently Asked Questions

What does the Member's Mark 8" Medium Memory Foam Mattress feel like?

It has a balanced medium feel with medium-firm memory foam support designed for steady, comfortable support.

Is this mattress good for back, side, or stomach sleepers?

The medium feel is designed to suit back, side, and stomach sleepers.

What type of foam is used for comfort and cooling?

It uses copper graphite memory foam that adapts to your body for pressure relief and helps draw heat away for more consistent comfort.

What sizes does the Member's Mark 8" Medium Memory Foam Mattress come in?

It’s available in Twin, Full, Queen, and King sizes.

How thick is the mattress?

The mattress height is 8 inches.

What bed frames or bases work with this mattress?

It’s compatible with most bed frames, including box springs, platform beds, and adjustable bases.

What warranty and guarantee are included?

It includes a 5-year limited warranty and is backed by the Sam’s Club Satisfaction Guarantee.

What are the mattress weights by size?

Twin: 38 lbs; Full: 50 lbs; Queen: 54 lbs; King: 71 lbs.

Where is the Member's Mark 8" Medium Memory Foam Mattress a good fit to use?

It’s designed for everyday bedrooms and works well for guest rooms, first apartments, and kids’ rooms.

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Specifications

Mattress

  • Sizes: Twin (39" x 75"), Full (54" x 75"), Queen (60" x 80"), King (76" x 80")
  • Height: 8"
  • Weight (Medium Firm): Twin (38 lbs), Full (50 lbs), Queen (54 lbs), King (71 lbs)

Standard Foundation/Base

  • Size:
    • Twin: 38" x 75"
    • Full: 54" x 75"
    • Queen: 60" x 80"
    • King: 76" x 80"
  • Weight Limit
    • All sizes: 750 lbs
  • Base Weight:
    • Twin: 110 lbs
    • Full: 150 lbs
    • Queen: 175 lbs
    • King: 180 lbs

Adjustable Base

  • Size:
    • Twin: 38" x 75"
    • Full: 54" x 75"
    • Queen: 60" x 80"
    • King: 76" x 80"
  • Weight Limit:
    • All sizes: 750 lbs
  • Base Weight:
    • Twin: 110 lbs
    • Full: 150 lbs
    • Queen: 175 lbs
    • King: 180 lbs

Low Profile Foundation/Base

  • Size:
    • Twin: 38" x 75"
    • Full: 54" x 75"
    • Queen: 60" x 80"
    • King: 76" x 80"
  • Weight Limit:
    • All sizes: 750 lbs
  • Base Weight:
    • Twin: 110 lbs
    • Full: 150 lbs
    • Queen: 175 lbs
    • King: 180 lbs

Member ratings & reviews

4.4 out of 5 stars
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65 ratings54 reviews
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Showing 1-3 of 54 reviews

Jun 29, 2026
Reviewer name: TS
5 out of 5 stars
5 out of 5 stars review

The best sleep from day one.

I have the Medium Feel Full Sized Gel Memory Foam Mattress. I got it for my growing daughter who experiences back pain from a slight curve in her back. The very first night she reported having the BEST sleep of her life. She said it was comfortable, didn't make her hot and supported her whole body. IThe mattress has a fitted zippered removable outer shell for throwing into the washing machine. I'm so glad I got her this mattress.

Incentivized Review
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Apr 17, 2026
Reviewer name: Minnesota Mom
5 out of 5 stars
5 out of 5 stars review

Nice Mattress!

Easy to unbox and open. Set up was super easy as well. Mattress quickly and fully expanded in 4-5 hours. No toxic smell which is always a concern but the mattress had literally no smell at all so I was very happy with that. The removable and washable cooling cover is soft and great quality. The medium feel is exactly that. Great mattress, would definitely recommend!

Incentivized Review
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Apr 26, 2026
Reviewer name: Kimbo
5 out of 5 stars
5 out of 5 stars review

Great Mattress! One I would highly recommend !

Great Mattress love it! Far better than others I have had! Definitely worth a try!! Glad I gave it a try! Very hard to find good mattresses and this definitely qualifies! I would recommend it highly and at this point have no complaints! Very impressive ! Forgot it seems to stay cool with new technology! Comfortable yet firm and supportive!

Incentivized Review
Helpful?398RQ5L5WR7M16890362582