The ultimate indulging comfort sheets.  I didn't even know that there where sheets higher than 800 thread count - ha.  These sheets are so comfortable that the first three night I woke up in the same position as when I went to sleep.  And I'm a toss and turn, can't get settled sleeper throughout the night.  I like the all-over elasticized fitted sheet.  The 18-inch mattress depth is a little too big for my current needs (to get a tight fit) but nice to have if needed in the future.