Compact Mattress Sheets Holder

I've seen a few designs here about the mattress sheets holder and they seem to be bulky in design and only for corners. thus, I thought about providing you this compact holder that could be attached in any side and point of the bed's frame. 

It consists of two bodies, one which is placed underneath the sheet and the second is what visible from the outer side.  I highly recommend: 

• PETG to be used as a filament. 
• 50% Infill at least to maintain proper structure because it's going to be pulled a lot.

Does it: 

• Work? Yes 
• Even when pulling the sheets? Yes
• Even jumping on the bed? Yes
• Yes? yes

I hope it's useful for you. I'd be happy to see your makes! Please share them with us.