Adjustable pillows provide the ability to get the correct level of firmness to ensure the right support

Cosi Home® Luxury Memory Foam Pillow with Bamboo Pillow Cover, Cooling Gel Filling & Adjustable Height - Breathable & Machine Washable for Side, Back & Front...
4.0
Amazon.co.uk

Silentnight Perfect Pillow – Adjustable Height to Suit Back, Front and Side Sleepers with Soft, Medium and Firm Support – Machine Washable and Hypoallergenic...
4.0
Amazon.co.uk

Side Sleeper Pillow, Adjustable Shredded Memory Foam Bed Pillows Neck Pillows for Pain Relief Sleeping, Back and Shoulder Support Firm Contour Curved...
4.0
Amazon.co.uk