Select Comfort Dual remote sleep number bed Review

I love this bed.  I used to be very stiff and sore in the morning and now I wake feeling rested.  As others have said, the mattress can get a dip in the middle but you can correct this by taking the mattress cover off and moving the foam piece.  It sounds like a lot of work but it takes all of about 5 minutes.  What other mattress can you do this with?  I have had this bed for almost 4 years and have done this twice!  I have the 7000 model and would not trade it for anything.