Final answer:
The recommended amount of space between the headboard and wall can vary but is generally 8 diameters side-to-side and 15 diameters deep. However, personal preference, room size, and furniture layout should also be considered.
Step-by-step explanation:
The recommended amount of space between the headboard and wall can vary depending on different sources.
An older "rule of thumb" suggests 5 side-to-side and 7-8 deep. However, newer work suggests as much as 8 diameters side-to-side and 15 diameters deep.
The amount of space you choose should also consider factors like personal preference, room size, and furniture layout.