Rockwell Cub

The Rockwell Cub is a 6-inch all-foam mattress in a box, firm, and the lowest-priced bed we sell. It is the bed for a bunk, a camper, a kid's room or a guest cot: light, no springs, and it comes home in a box in the back seat.

What is inside the Rockwell Cub

• 6-inch high-density foam, firm feel, no springs.
• Roll-packed in a box; let it expand for a day before you judge the feel.
• Twin, Double and Queen.
• Rockwell is a brand you will only find at Mr. Liquidator.

Specifications: as supplied by the maker; checked November 2026.

Who the Rockwell Cub suits

The Rockwell Cub is a good fit for kids and teens, bunk beds, campers and RVs with a standard bed size, guest beds and short-term rentals. Not the bed for a heavier adult who sleeps on it every night: at 6 inches of foam there is not enough depth to keep a larger body off the frame.

How the Rockwell Cub compares

The Koala 6-inch and the Husky Tomboy 6-inch are the same idea from other makers; the three sit together on the floor so you can feel the difference. The next step up in the Rockwell line is the Hotel Plus, a pocket-coil pillow top at 8.5 inches, which is the bed to pick for an adult who sleeps on it every night.

The price

Save 25 to 70% on premium mattresses: the price above is per mattress, as of November 2026, and the live price on this page is the one you pay. Foundations and frames are sold separately.

Practical

• Works on a platform, slats or a bunk-bed deck. Slats should be no more than about 3 inches apart for a foam bed.
• No box spring needed.
• Rotate it head to foot every few months. One-sided; do not flip.
• Ask us about the warranty on this line.

Questions we get asked about the Rockwell Cub

Who is the Rockwell Cub best for?

Kids and teens, bunk beds, campers and RVs with a standard bed size, guest beds and short-term rentals. Not the bed for a heavier adult who sleeps on it every night: at 6 inches of foam there is not enough depth to keep a larger body off the frame.

Is the Rockwell Cub a good mattress?

Yes, for a bunk, camper, kid's room or guest bed: 6 inches of firm high-density foam in a box, our lowest-priced bed, sold only here under our Rockwell label. For a heavier adult every night we'd point you to the Hotel Plus. Nobody here works on commission, and you're welcome to lie on it in the store before you decide.

Is a 6-inch foam mattress enough for an adult?

For a guest bed or a few nights, yes. For an adult sleeping on it every night, we point to the Hotel Plus or a thicker foam bed; 6 inches of foam under a heavier body bottoms out on the frame.

Does it need a box spring?

No. Any flat surface with slats close together or a solid deck works, including bunk beds.

How long does it take to expand out of the box?

Most of the way in a few hours; give it a day before you decide how it feels.

Will it fit a bunk bed?

Yes. A 6-inch mattress is the right height for most bunk-bed guard rails; thicker beds can bring the top above the rail.

Try it in the store

Lie on it for ten minutes the way you actually sleep. We are at 101-44703 Yale Road in Chilliwack, open 10 am to 6 pm every day, and nobody here works on commission. For what the words tight top, pillow top, euro top and hybrid mean, read mattress types explained; for firm, medium and plush, mattress firmness explained. This bed is in our foam mattresses collection, and if you're still weighing whether your current bed is done, our how long a mattress lasts page sorts it out. We deliver across the Fraser Valley on Sundays; the rates are on our delivery page.