Dock a tot / Snuggle me or no ?

I’m a first time mom, My MIL got me a fisher price motion bassinet for the baby (will be due next month)

I want to get a dock a tot or snuggle me to insert inside the bassinet but I’m not sure if that’s necessary.

I’m aware of SIDS so that’s why I’m on the fence about getting one but i just feel like swaddling and that flat bassinet bed isn’t comfy to the baby ?