Love these sheets!

These sheets are fantastic- so, so soft and temperature- regulating- they keep a coolness to them that I really like as someone who easily gets too warm at night. My only question is why do they not come with a flat sheet? Most sets still have the fitted and flat included and I was surprised these sets do not come with a top sheet- you can’t even buy it separately. I actually don’t usually use a top sheet and like the option of purchasing separately but I did want the flat sheet for this set. Especially given the price of this set, it should come with both sheets (or be sold separately).