Cheap Full Size Mattress
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A cheap full size mattress is easiest to judge by its build, not its label. A full size bed measures about 54 inches wide and 75 inches long, so the right mattress depends on thickness, foam type and firmness more than on a headline figure. This guide explains what those features mean and then looks at four full size listings from our product pack. Each one is described from its own bullets and specs, so you can compare the same factors side by side.
Start with thickness and layers
Thickness is the first thing to check. A thin mattress can feel hard over a bed frame with slats, while a thicker one gives more cushioning for side sleepers. The listings in this set range from 5 inches to 8 inches, with one 6 inch version offered in both a medium firm and a firm feel. The number of layers also matters, since a multi-layer build usually separates the comfort foam from the base support. The EGOHOME 5, 6 and 8 inch listings each state four layers, while the Gelsea listing states two.
Thicker is not always better for every sleeper. A taller mattress raises the bed height, which can make getting in and out harder for some people. Measure your frame and your bedroom door before you order a larger size, and check that the box can pass through the stairs or hallway if the building has tight spaces.
Foam type and how it feels
Most listings here use gel memory foam. Memory foam contours to the body and reduces pressure at the shoulders and hips. Gel infusions are added to the foam to change how it holds heat. The EGOHOME bullets describe a bubble structure with airflow, while the Gelsea bullets describe open-cell gel infused foam. Open-cell foam is generally described as breathing more freely than closed-cell foam, but the listings do not give a heat test result, so treat the claim as the seller’s description.
Firmness is the other main factor. The EGOHOME listings are labeled medium firm, and the Gelsea listing is labeled firm. A firm surface supports the spine for back sleepers and heavier bodies, while a medium firm surface often suits side sleepers who want more give at the hips and shoulders. Stomach sleepers usually need a surface that does not sink too far, so check the firmness label against how you sleep.
Cover, weight limit and care
Cover material affects comfort and cleaning. The EGOHOME listings name polyester and polyester blend covers, and the Gelsea listing describes a removable and washable moisture-wicking poly-rayon cover. A removable cover makes cleaning easier, so check whether the cover comes off before you buy. The specs for the EGOHOME listings state a weight limit of 750 pounds, and the Gelsea specs state the same figure. Weight limits are set by the manufacturer, so keep to them and read the warranty terms before you use the bed for a heavy load.
Weight matters for handling, too. The EGOHOME 5 inch listing does not state a shipping weight in the specs we have, while the 6 inch and 8 inch listings state 29.5 pounds and 30 pounds. The Gelsea 6 inch listing states 25 pounds. A lighter box is easier to move up stairs, but check the product dimensions for the depth of the box.
Product options in this set
EGOHOME Full Size Memory Foam Mattress, 5 Inch, Green Tea
The EGOHOME 5 inch is a full size gel memory foam mattress in a box, with a green tea colored cover. The specs describe it as medium firm with a tight top, four layers and a 750 pound weight limit. The bullets say the foam is designed to fit the body curve and move with changes in sleeping posture. The product dimensions are 75 inches long, 54 inches wide and 5 inches thick.
Choose this if you want a thin profile on a bed that already has a supportive base, or if you want a lower bed height. The bullets describe a bubble structure with airflow for a cooler feel, and the specs list temperature regulating and fire retardant features. A 5 inch build suits lighter sleepers better than heavier ones, so compare the weight limit with your own needs before you order.
EGOHOME Full Size Memory Foam Mattress, 6 Inch, Green Tea
The EGOHOME 6 inch is the middle option in the same line, with a medium firm feel and four layers. The specs give a product weight of 29.5 pounds and the same 750 pound limit as the 5 inch. The bullets describe the same foam structure, airflow and fit with body curve. Its listed thickness is 6 inches.
Choose this if you want a bit more cushioning than the 5 inch while keeping a moderate height. The medium firm label suits side sleepers and people who change position during the night. The listing also includes a stable quality note on the foam, which says the foam keeps its firmness across a range of room temperatures from 4 to 30 degrees Celsius. Treat that as the manufacturer’s description and check it against your own room.
EGOHOME Full Size Memory Foam Mattress, 8 Inch, Green Tea
The EGOHOME 8 inch is the tallest of the three EGOHOME listings and is also medium firm. The product dimensions are 75 by 54 inches with an 8 inch thickness, and the specs list 30 pounds of weight. The cover is a polyester fabric, and the foam is gel memory foam with four layers.
Choose this if you want the most cushioning in the EGOHOME line and you have a bed frame that will not add too much height. The bullets describe pressure relief and breathable airflow, the same claims as the other EGOHOME models. A thicker build gives more depth for side sleepers, but it also raises the bed. Check the height of the top of the mattress against the bed frame and the side rails before you choose.
Gelsea 6 Inch Full Size Firm Gel Memory Foam Mattress
The Gelsea is a 6 inch full size firm gel memory foam mattress in a box. The bullets describe a solid support surface for spinal alignment, open-cell gel infused foam and a removable, washable poly-rayon cover. The specs list two layers, a firm feel and a 25 pound product weight. The listing also says it is CertiPUR-US and OEKO-TEX Standard 100 certified and backed by a 10-year warranty.
Choose this if you are a back sleeper or a heavier sleeper who wants a firm feel and a removable cover. The bullets describe the mattress as compressed, rolled and packed in a box, which is why the setup process is described as simple. The firm label is the main difference from the EGOHOME listings, so check whether you want a firmer surface or a medium firm one before you choose.
Which listing fits which sleeper
Side sleepers who want pressure relief will look first at the EGOHOME 6 or 8 inch, since both list medium firm and extra thickness. Back sleepers who want more firmness should compare the Gelsea listing with the EGOHOME 6 inch to see which feel they prefer. Stomach sleepers should check the firmness and the thickness together, because a deep foam surface can let the hips sink. Lighter sleepers on a supportive base may find the 5 inch EGOHOME a good match for a lower bed height.
Common buying mistakes
The most common mistake is to choose on thickness alone. A thick mattress with the wrong firmness can feel too soft for back sleeping, while a firm mattress can feel too hard for side sleeping. Another mistake is to skip the frame check. A mattress needs a flat, supportive base, and slats that are too far apart can make any foam sag over time.
Some buyers also forget the setup. Mattresses in a box need time to expand after they are unrolled, so plan for several hours or a full night before you use the bed. Read the included instructions, since the listings describe a compressed and rolled delivery.
Frequently asked questions
Is a full size mattress enough for two adults?
A full size mattress is about 54 inches wide, which is narrower than a queen. Two adults may find it tight, so measure your space and compare with a larger size before you buy.
Which listing is the firmest?
The Gelsea 6 inch is labeled firm. All three EGOHOME listings are labeled medium firm.
Does gel memory foam sleep hot?
Gel infused foam is designed to hold heat less than standard foam, and the Gelsea bullets describe open-cell gel foam with a breathable cover. The listings do not give a test result, so check reviews from a neutral source and your own comfort in the first few weeks.
Can I remove the cover to wash it?
The Gelsea listing says the cover is removable and washable. The EGOHOME listings name a polyester cover but do not state that it comes off, so check the product page before you rely on a wash.
What weight can these mattresses hold?
The specs for the EGOHOME listings and the Gelsea listing state a weight limit of 750 pounds. Use that figure as the manufacturer’s limit and follow the care instructions in the box.
Do these mattresses come with a warranty?
The Gelsea bullets state a 10-year warranty. The EGOHOME listings do not state a warranty length in the bullets we have, so read the warranty section on the product page before you order.
Bottom line
If you sleep on your side and want a medium firm surface, start with the EGOHOME 6 inch. If you want more thickness in the same feel, choose the EGOHOME 8 inch after you check the bed height. If you want a firm surface with a removable cover and a stated warranty, compare the Gelsea 6 inch. Match firmness and thickness to how you sleep before you look at any other feature.