Silk Flat Sheet Sets: 3-Piece vs 4-Piece Buying Guide
By DAISYSILK AU | Published: 2026-11-06
Category: Buying Guides
A practical guide to choosing between 3-piece and 4-piece silk flat sheet sets, covering what each includes, how to match sizes, and why 22 momme silk matters for durability.
Start with what you already own
Before you decide between a 3-piece and a 4-piece silk flat sheet set, take a quick inventory of your current bedding. A 3-piece set typically includes one flat sheet and two pillowcases. A 4-piece set adds a fitted sheet. The right choice depends on whether you already have a fitted sheet you like, whether you use a duvet cover, and how you prefer to make your bed.
If you sleep with a duvet or comforter and a separate fitted sheet, a 3-piece flat sheet set gives you the silk surfaces you touch most—the sheet under you and the pillowcases under your head—without duplicating items you already own. If you want a fully coordinated silk bed or are starting fresh, a 4-piece set covers the mattress as well.
What a 3-piece silk flat sheet set actually includes
In the DAISYSILK AU catalog, the 22 Momme 3PCS Silk Flat Sheet Set is exactly that: one 22 momme silk flat sheet and two 22 momme silk pillowcases. There is no fitted sheet in this set. That matters if you prefer a tight, tucked-in look or if your mattress is deep or unusually sized—you will need to supply your own fitted sheet.
The trade-off is simplicity and value: you get the silk you feel against your skin without paying for a piece you may not use. For anyone who already has a fitted sheet in a neutral color, this is often the most practical entry into silk bedding.
What the 22 Momme 3PCS set gives you
- 22 Momme 3PCS Silk Flat Sheet Set: Includes 1 pc 22 Momme silk flat sheet and 2 pcs 22 Momme terse silk pillowcases. Confirms the exact contents so you can check it against what you already own.

22 Momme 3PCS Silk Flat Sheet Set - 22 Momme 3PCS Silk Flat Sheet Set: Material: 100% 22 Momme pure long stranded Mulberry silk. 22 momme is a mid-to-heavy weight that offers more durability than lighter 19 momme silk, according to the product description.
- 22 Momme 3PCS Silk Flat Sheet Set: Available sizes: US Twin, US Full, US Queen, US King, US Cal.King. Covers most standard US mattress sizes, so you can match your bed without guesswork.
When a 4-piece set makes more sense
A 4-piece silk set usually adds a fitted sheet to the flat sheet and two pillowcases. Choose this if you want the entire sleeping surface in silk, if your current fitted sheet is worn or mismatched, or if you are setting up a guest room and prefer a coordinated look. The extra piece also means one less thing to buy separately, which can simplify shopping.
Keep in mind that a fitted sheet must match your mattress depth and size precisely. If your mattress is unusually deep or you use a mattress topper, check the fitted sheet's pocket depth before committing—the supplied information for the 3-piece set does not include a fitted sheet, so depth is not a concern there.
3-piece vs 4-piece at a glance
- 3-piece set: One flat sheet and two pillowcases. Best if you already have a fitted sheet you like or use a duvet cover. Lower cost and less duplication.
- 4-piece set: Adds a fitted sheet. Best for a fully silk bed, guest rooms, or replacing worn bedding. Requires checking mattress depth and size.
Match the size to your bed, not the label
Silk flat sheets are sized by mattress dimensions, but the flat sheet itself is larger to allow for tucking. The 22 Momme 3PCS set lists flat sheet sizes for Twin through Cal.King. For example, the Queen flat sheet measures 230*260cm/91*102'', and the King measures 260*275cm/102*108''. Pillowcase sizes also vary: Queen and King sets include larger pillowcases (51*76cm/20*30'' and 51*91cm/20*36'' respectively).
Measure your mattress before ordering. If you are between sizes, size up for a flat sheet—you can always tuck more, but a sheet that is too small will not stay put. The product notes that measurements are manual and for reference only, so allow for slight variation.
Size options for the 22 Momme 3PCS set
- 22 Momme 3PCS Silk Flat Sheet Set: US Queen: flat sheet 230*260cm/91*102'', pillowcases 51*76cm/20*30''. A common size for couples; check that the flat sheet is long enough to tuck under a queen mattress.
- 22 Momme 3PCS Silk Flat Sheet Set: US King: flat sheet 260*275cm/102*108'', pillowcases 51*91cm/20*36''. King-size pillowcases are longer; confirm they fit your pillows.
- 22 Momme 3PCS Silk Flat Sheet Set: US Cal.King: flat sheet 260*280cm/102*110'', pillowcases 51*91cm/20*36''. California King mattresses are longer, and this flat sheet accounts for that extra length.
Why 22 momme is worth considering
Momme measures silk weight and density. Higher momme means a thicker, more substantial fabric. The 22 Momme 3PCS set uses 22 momme pure long stranded Mulberry silk, which the product description positions as a significant durability improvement over the brand's 19 momme line. The same description notes that with proper care, higher-quality silk fibers can last up to twice as long.
That durability matters for a flat sheet, which sees more friction than a pillowcase. If you want silk that stands up to regular use, 22 momme is a sensible middle ground—heavier than 19 momme but not as heavy as 25 momme, which some sleepers find warmer.
Care and color choices that affect longevity
The supplied information for this set does not include specific washing instructions, so follow the care label that comes with your bedding. As a general rule, silk benefits from gentle handling, but confirm the manufacturer's guidance before washing. The product does note that proper care extends the life of the silk.
Color availability also varies by size: the 22 Momme 3PCS set comes in Ivory, Champagne, and Navy, but Navy is listed only for Twin, Full, and Queen in the supplied variant data. If you have a King or Cal.King bed and want Navy, check current availability before ordering.
A simple way to decide
If you already own a fitted sheet that fits well and you mainly want silk against your skin, the 3-piece set is the practical choice. If you are outfitting a bed from scratch or want a uniform silk look, a 4-piece set is worth the extra piece. Either way, measure your mattress, confirm the flat sheet dimensions, and check the return policy before you buy.
For a queen bed, the 22 Momme 3PCS Silk Flat Sheet Set in US Queen gives you a 230*260cm flat sheet and two 51*76cm pillowcases—enough silk for the surfaces you touch most, without an extra fitted sheet you may not need.
