Olivia Rocco Oslo Sapphire Super Soft Flannel Duvet Cover Set with Pillowcases

Sapphire Blue Flannel. The Bedroom Elevated.

The Olivia Rocco Oslo Sapphire Super Soft Flannel Duvet Cover Set brings a vibrant, jewel-toned energy to the bedroom that is both bold and deeply comforting. The sapphire blue colourway has a richness and warmth that transforms the bed into the centrepiece of the room, while the 100% polyester flannel fabric delivers the enveloping softness that makes cold nights genuinely something to look forward to. OEKO-TEX certified and designed in England — winter bedding with real character.

100% Polyester Flannel Fabric

Made from premium 100% polyester flannel, this duvet cover set is engineered for warmth, softness, and durability. The brushed flannel surface creates a plush, velvety texture that feels exceptional against the skin and retains its softness wash after wash. OEKO-TEX certified, the fabric has been independently tested and verified to be free from harmful substances — safe for the whole family, including those with sensitive skin.

Oslo Sapphire Colourway

The Oslo Sapphire is a vivid, jewel-toned blue with a warmth and depth that brings genuine drama to the bedroom. It pairs beautifully with white, cream, grey, and gold accents, and works equally well in modern, classic, and maximalist interior schemes. Part of the wider Oslo flannel collection, also available in Black.

Sizes & Dimensions

Each set includes one duvet cover and the corresponding number of pillowcases, available in the following sizes:

• Single — duvet cover 135 x 200 cm, one pillowcase 50 x 75 cm
• Double — duvet cover 200 x 200 cm, two pillowcases 50 x 75 cm
• King — duvet cover 230 x 220 cm, two pillowcases 50 x 75 cm

How to Use

Insert your duvet through the opening at the base of the cover and secure using the button fastening. Shake to distribute evenly and smooth into the corners. Dress with the included pillowcases and layer with a throw or cushions for a fully dressed winter bed.

Care Guide

Machine washable — please follow the care instructions on the packaging to preserve the softness and quality of the flannel. Wash with similar colours. Do not bleach or tumble dry on high heat.

Why Olivia Rocco

Designed in England with a commitment to quality, considered design, and lasting warmth, Olivia Rocco bedding is backed by a manufacturer's warranty and dedicated customer support. The Oslo collection is made for bedrooms that take winter seriously — and for customers who know that the right shade of blue changes everything.