Spend where you will feel it. Stay flexible everywhere else.

Useful for stairs, elevators and move-in timing. Measure the box and the final expanded mattress footprint.

Queen is easier to share long term; Full saves floor space and can cost less to furnish.

A sturdy platform or basic foundation may make more sense than a heavy furniture-style bed.

Especially useful if buying online without trying the mattress in person.

Very heavy hybrids and power bases can become expensive to move later.

Free pillows and sheets are only valuable if the mattress price itself is competitive.