Plush black and white wavy striped flannel fleece bedding set on a bed against a beige wall - RoomDen.
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Plush black and white wavy striped flannel fleece bedding set on a bed against a beige wall - RoomDen.
1 / 5
Overhead view of a black and white striped flannel fleece duvet cover with an open book and a small bottle resting on it - RoomDen.
2 / 5
A cozy bed made with a black and white wavy striped flannel fleece duvet cover and pillows, with an open book on top - RoomDen.
3 / 5
Side view of a bed with a plush black and white striped flannel fleece duvet and pillowcases, showing the texture - RoomDen.
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Fluffy black and white striped flannel fleece bedding set styled on a bed, showing the duvet and multiple pillows - RoomDen.
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Sumi Wavy Brushstroke Stripe Flannel Fleece Bedding Set

4.8 out of 5.0 stars 4.8 5 reviews
$199.00
SizeSize guide
SheetFlat
Quantity
Description

The Vibe: Picture a quiet morning where the light is soft and the world can wait. Sumi wraps your bed in flowing, ink-brushed waves that ripple across a creamy white ground—calm, graphic, and endlessly soothing. The plush fleece pile begs to be sunk into, turning an ordinary bedroom into a hushed, art-gallery-meets-cocoon retreat.

Key Features:

  • Ink-Wash Wavy Stripes: Soft-edged, hand-painted-feel black waves drift over a warm white canvas—a brushstroke pattern that reads bold from afar and gentle up close.
  • Plush Flannel Fleece: A dense, fuzzy pile with a velvety nap that feels exceptionally soft and lofty against the skin.
  • Cozy, Substantial Warmth: Thick and insulating, made for chilly nights, lazy weekends, and burrowing-in comfort.
  • Quiet Monochrome: A timeless black-and-white palette that anchors a room without shouting.

Styling Tips: Let Sumi be the graphic centerpiece against pale walls and light wood. Layer in linen-toned throws, a single ceramic vase, and warm woven textures to soften the contrast. The flowing stripes feel right at home in minimalist, Japandi, and modern-cozy bedrooms—and bring quiet drama to a small dorm or studio space.

Dimensions: Available in multiple sizes—see the Size Guide to find your fit.

Care: Designed for easy, everyday care. See product tag for full care guidance.

Set Includes:

  • Small: 1× Duvet Cover, 1× Bedsheet, 1× Pillowcase
  • Medium / Medium+ / Large: 1× Duvet Cover, 1× Bedsheet, 2× Pillowcases
Size guide

Find Your Perfect Fit.
Know your mattress size? Use the Compatibility Chart below. Unsure? Measure your mattress (Width × Length) first.

Standards supported: US/CA, AU/NZ, UK, EU.

1. Match Your Mattress Size (Compatibility)

Fitted sheets fit mattresses up to 30 cm depth.

RoomDen Size 🇺🇸🇨🇦 US / CA 🇦🇺 AU 🇬🇧 UK 🇪🇺 EU
SmallSingle / TwinSingleSingleSingle
MediumFull / DoubleDoubleDoubleDouble
Medium PlusQueenQueenKingQueen
LargeKingKingSuper KingKing

2. Product Dimensions (cm)

Size Duvet Cover Fitted Sheet Flat Sheet Pillowcases
Small150 × 200120 × 200180 × 23048 × 74 (1x)
Medium200 × 230150 × 200245 × 25048 × 74 (2x)
Medium Plus200 × 230180 × 200245 × 25048 × 74 (2x)
Large220 × 240180 × 200245 × 27048 × 74 (2x)

3. Reference: Standard Mattress Sizes (cm)

🇺🇸🇨🇦 US / CA

NameW × L
Twin / Single99 × 191
Twin XL99 × 203
Full / Double137 × 191
Queen152 × 203
King193 × 203
Cali King183 × 213

🇦🇺🇳🇿 AU / NZ

NameW × L
Single92 × 188
King Single107 × 203
Double138 × 188
Queen153 × 203
King183 × 203
Super King203 × 203

🇬🇧 UK

NameW × L
Single90 × 190
Double135 × 190
King150 × 200
Super King180 × 200

🇪🇺 EU

NameW × L
Single90 × 200
Large Single120 × 200
Double140 × 200
Queen160 × 200
King180 × 200
Super King200 × 200

1. Match Your Mattress Size (Compatibility)

Fitted sheets fit mattresses up to 12" depth.

RoomDen Size 🇺🇸🇨🇦 US / CA 🇦🇺 AU 🇬🇧 UK 🇪🇺 EU
SmallSingle / TwinSingleSingleSingle
MediumFull / DoubleDoubleDoubleDouble
Medium PlusQueenQueenKingQueen
LargeKingKingSuper KingKing

2. Product Dimensions (inch)

Size Duvet Cover Fitted Sheet Flat Sheet Pillowcases
Small60" × 80"47" × 80"71" × 90"20" × 30" (1x)
Medium80" × 90"60" × 80"96" × 98"20" × 30" (2x)
Medium Plus80" × 90"70" × 80"96" × 98"20" × 30" (2x)
Large86" × 94"70" × 80"96" × 107"20" × 30" (2x)

3. Reference: Standard Mattress Sizes (inch)

🇺🇸🇨🇦 US / CA

NameW × L
Twin / Single39" × 75"
Twin XL39" × 80"
Full / Double54" × 75"
Queen60" × 80"
King76" × 80"
Cali King72" × 84"

🇦🇺🇳🇿 AU / NZ

NameW × L
Single36" × 74"
King Single42" × 80"
Double54" × 74"
Queen60" × 80"
King72" × 80"
Super King80" × 80"

🇬🇧 UK

NameW × L
Single35" × 75"
Double53" × 75"
King59" × 79"
Super King71" × 79"

🇪🇺 EU

NameW × L
Single35" × 79"
Large Single47" × 79"
Double55" × 79"
Queen63" × 79"
King71" × 79"
Super King79" × 79"

Questions? Chat with an expert.

Care

Washability: Machine Washable

Best Result: Cold Wash + No Softener

Fleece is all about warmth. The only rule? Keep it cool to keep it soft.

The Routine

  • Machine Wash: Cold water on a gentle cycle. Wash separately to avoid lint transfer.
  • Detergent: Use mild detergent. Avoid fabric softeners strictly. They coat the fibers and cause the fleece to clump together ("matting").
  • Drying: Air dry or tumble dry on low heat. High heat damages synthetic fibers.
  • Ironing: Do not iron. High heat can melt the synthetic fibers and ruin the texture.

💡 Expert Tips

Zap the Static:

Dry winter air causing static? Add a splash of white vinegar to the rinse cycle. It naturally softens the fabric and neutralizes static without damaging the pile like chemical softeners do.

Shipping & Returns

Free Shipping

We offer free standard shipping to most regions, including the United States, Canada, the European Union, the United Kingdom, and Australia.

Order Processing

Orders are processed within 1–4 business days and ship from our Shanghai or New York warehouse.

Delivery Time

Delivery usually takes 3–7 business days, depending on the destination. Once your order ships, you will receive a tracking email with detailed delivery information.

Returns

Most items are eligible for return within 14 days of delivery when unused and returned in their original packaging.

Refunds may be issued to the original payment method or as store credit, minus a 30% restocking fee.

For hygiene reasons, bedding and intimate items are non-returnable unless defective upon arrival.

Read our Shipping Policy and Return Policy for full details.

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