bassinet vs dockatot

Emma
I've purchased a dockatot for my baby to co sleep with me and my husband who works out of town most times which means baby will be sleeping with me alone for the most part. I'm just confused if I need a bassinet with this Also? I plan to get a crib after baby is about 7mths of so and I'm confortable leaving him in the crib. Pls let me know what your thoughts are.