Is the Gaomon bunk bed sturdy enough for adults?

It is a metal twin bunk built for kids and lighter teens. Check the weight limit printed in the manual before putting an adult on the top bunk.

Does it come with both mattresses?

No. The price covers the frame, guardrails and ladder only. You need two twin mattresses, and the top bunk needs a thin one so the guardrail stays useful.

What mattress thickness works on the top bunk?

Keep the top mattress thin, around 6 inches, so the guardrail sits well above it. A thick pillow-top can leave little rail height.

Can the bunks be separated into two beds?

This model is designed as a fixed bunk. It is not sold as a stackable or split design, so plan on keeping it assembled as a bunk.

Is $189.98 a good price for this bunk bed?

It is a low price for a metal twin-over-twin with a ladder and guardrails. Lowe's was the only store listing it new at $189.98 as of November 8, 2026, so compare against similar metal bunks before buying.