6, 8 or 10 Inch Memory Foam Mattress: How to Choose the Depth

Quick answer

Match thickness to sleep position and body weight: a 6-inch model suits lighter sleepers and guest or kids' rooms, an 8-inch model is the balanced all-rounder for most adults, and a 10-inch model gives heavier or combination sleepers more foam above the base. Always check the bed base and fitted-sheet depth before ordering.

Thickness is really a comfort-layer measurement

On a memory foam mattress, the headline number is the total height, not the amount of pressure-relieving foam. The Artemisia 10-inch model, for example, pairs a 2.5-inch memory foam layer with a high-density base, while the Artemisia 6-inch model uses a 1-inch memory foam top layer over supportive base foam. That difference in the comfort layer, not the total height alone, is what you feel under your shoulder and hip.

A thicker mattress generally leaves more room for a deeper comfort layer, which can help heavier sleepers avoid bottoming out. A thinner mattress puts you closer to the support base, which can feel firmer and more stable but offers less cushioning. Neither is automatically better; the right depth depends on how much sink-in you want.

When a 6-inch mattress is the smarter buy

A 6-inch memory foam mattress is a practical choice for guest rooms, bunk beds, kids' rooms and lighter sleepers who do not need deep contouring. Lower height also keeps the mattress lighter and easier to move, and it works on adjustable bases and box springs according to the Artemisia 6-inch product details.

The trade-off is less comfort foam. Heavier adults or side sleepers who need pressure relief at the shoulder may feel the support base sooner. If that describes you, size up rather than trying to soften a thin mattress with a topper.

When an 8-inch mattress is the balanced choice

An 8-inch memory foam mattress sits in the middle: enough depth for a useful comfort layer without the bulk and weight of a thicker model. The 8 Inch Memory Foam Mattress with Soft Aloe Vera Fabric uses CertiPUR-US certified layers and a stretch-knit cover treated with Aloe Vera extract, which is a sensible option if you want a soft-touch surface and a mattress that ships compressed in a box.

This depth suits most average-weight adults, back and stomach sleepers, and anyone replacing a standard mattress on a platform bed or box spring. It is also easier to fit with standard sheets than a 10-inch model, though you should still check the fitted-sheet pocket depth.

When a 10-inch mattress earns its extra height

A 10-inch memory foam mattress gives you the most room for a deeper comfort layer, which heavier sleepers and combination sleepers often appreciate because it reduces the chance of pressing through to the base. The Artemisia 10-inch model combines a 2.5-inch memory foam layer with high-density base foam and a removable, washable polyester cover, and it is compatible with adjustable bases and box springs.

The trade-offs are weight, price and sheet fit. A thicker mattress is harder to rotate and may need deep-pocket sheets. It also raises the sleeping surface, which matters on a low bed frame or for anyone who prefers to sit closer to the floor.

Decision rules for picking a mattress depth

• By sleep position: Side sleepers should lean toward 8 or 10 inches so the shoulder and hip have more foam to sink into. Back and stomach sleepers can usually stay comfortable on 6 or 8 inches because they need less contouring. If you switch positions during the night, favor 8 inches or more.
• By body weight: Lighter sleepers under roughly 150 lb often do fine on a 6-inch model. Average-weight adults are well served by 8 inches. Heavier sleepers should choose 10 inches to keep a meaningful comfort layer between them and the support base.
• By bed base and frame: Check that your platform, box spring or adjustable base supports the mattress you choose. The 6-inch and 10-inch Artemisia models are listed as compatible with adjustable bases and box springs; confirm the same for any frame before buying. Measure the fitted-sheet pocket depth, especially for a 10-inch mattress.
• By room and use: For guest rooms, bunk beds and kids' rooms, a 6-inch mattress is usually enough and easier to handle. For a primary bedroom used every night by an adult couple, choose 8 or 10 inches based on weight and sleep position.

How the three depths compare in this catalog

• Artemisia 6" White Memory Foam Medium Firm Mattress with 1” Gel Infused Memory Foam: 6-inch profile with a 1-inch memory foam top layer over high-density base foam. A thin comfort layer keeps the feel firmer and more stable, which suits guest beds and lighter sleepers.

  

• 8 Inch Memory Foam Mattress with Soft Aloe Vera Fabric: 8-inch memory foam with CertiPUR-US certified layers and an Aloe Vera-treated stretch-knit cover. The mid-depth build gives most adults a balance of cushioning and support while keeping the mattress manageable to move.

  

• Artemisia 10" White Memory Foam Medium Firm 100% Polyester CertiPUR-US Mattress: 10-inch mattress with a 2.5-inch memory foam layer and a removable, washable polyester cover. The deeper comfort layer helps heavier sleepers avoid bottoming out, and the washable cover simplifies upkeep.

Who each depth fits

Best for

• Guest rooms, kids' rooms and lighter sleepers considering a 6-inch gel memory foam mattress
• Average-weight adults and back or stomach sleepers who want a balanced 8-inch memory foam mattress
• Heavier sleepers and combination sleepers who need the deeper comfort layer of a 10-inch memory foam mattress

Not for

• Heavy adults or side sleepers who need deep pressure relief and are considering a 6-inch model
• Anyone with a low bed frame or standard sheets who wants the extra height of a 10-inch mattress
• Shoppers who have not confirmed their bed base or fitted-sheet depth