Where can I sell my old bed online?

List it free on a local classifieds site such as Olditems, where buyers in your city contact you directly with no commission. Society groups and Facebook Marketplace also work. Furniture dealers buy instantly but usually pay less because they need to resell.

Should I sell the bed with the mattress?

Offer both options. Many buyers want the bed only, and an old mattress adds little to the price unless it is nearly new and clean. Mention the mattress brand and age if you include it.

How do I price a second hand bed?

Compare with beds of the same size, material and storage type listed in your city today, and adjust for age and condition. The furniture price calculator gives a starting range. Solid wood beds hold their value better than engineered wood.

Do I need to dismantle the bed before selling?

Not necessarily, but say in your ad whether you will dismantle it or the buyer should bring a carpenter. Most beds come apart with a screwdriver or Allen key, which makes moving much easier.