question regarding model y interior shape and size between 5 and 7 seaters

anyone know if the back seat / trunk area size between 5 and 7 seater identical? i am looking to get an inflatable / foam bed and most of sellers only mentioned model y but no details on whether it fits both type or just the 5 seaters…last time i learned the hard way that the sub-trunk size were different between the two 🥲

tia