Would it be bad to sleep on a trampoline instead of a bed?

as i was watching tv the main character was visiting her parents home and went into her old room. she had a trampoline as a bed! i love the idea so much i'm considering buying one and replacing my bed with it. is that dangerous? if i sleep on a tramp everynight will i be sleeping with bad posture or will it be safe? the idea seems super fun and just sounds like something i'd do...is it ok?