It is big enough for a bed 180X200 because it heats very well even if it does not cover the entire surface.
The son in power long enough and can stay connected even if the mattress heater is removed (as we do) as they will disconnect the heating mattress easily.
For what concerns us we have chosen to put in place between the bottom sheet and comforter making the bed and we remove it before going to bed in order to preserve the great job.
The heating is fast in position 3, 30Mn enough to lie down in a consistently warm bed, much better than a hot water bottle.
Excellent purchase, we recommend.
