purchased st creek ept km mattress and box springs . requested that the box springs be cut down 3-4 inches so thgat small wife coud get into bed easier. we assumed this was done however we find that we now have a high center to the bed and we constantlw roll from side to side from the middle outward. could it be a mattress problem or a box spring problem? this isa serious problem for us (we are both 82 years old). i have not contacted penny's.date of purchase was 07 03 09 .order #oco7977 for delivery. purchase price $1254 .62 inc. tax and delivery. read full review »