Pillow Cube SIDE CUBE RISER DELUXE All the adjustability of the Side Cube Riser, with room to roam: this is the big one. The Side Cube Riser Deluxe is Pillow Cube's largest adjustable-height pillow — the same patent-pending modular cube built for side sleepers, scaled up to a full 28 inches wide. Roughly 35% more surface area than the standard Side Cube Riser, so you can shift, roll and resettle through the night without ever running out of pillow. When you sleep on your side, the distance from your shoulder to your ear is unforgiving. A pillow that's too short lets your head drop, kinking your neck toward the mattress. Too tall, and your neck pushes the other way. The Side Cube Riser Deluxe is squared off to fill that 90-degree shoulder gap completely and hold your head in neutral alignment — all night, in whatever position you land in. Three Heights in One Pillow The Deluxe ships fully stacked at 5 inches — the height that works for most side sleepers right out of the box. If it feels too tall, the included risers come off in two simple steps. 5" – Full stack, ideal for most side sleepers and broader shoulders. 4" – Remove one 1" riser for a slightly lower profile. 3" – Remove both risers for a low, plush feel. No second pillow. No stacking. No nightly adjustments. Set it once to the height that fits your body and your mattress, and let your spine do the rest. A Closer Look Inside Three distinct layers, one cohesive pillow. The modular construction stays neatly stacked while you sleep, so there's no shifting and no resettling. Want to change your height? Unzip the cover, pull a layer, zip it back up. That's it. Premium AeroFoam Core At the heart of the Deluxe is AeroFoam — a breathable, viscoelastic polyurethane foam that holds firm support without trapping heat. Unlike traditional pillow filler that flattens and shifts overnight, the precision-cut AeroFoam core keeps its shape and its lift, so the alignment you go to sleep with is the alignment you wake up with. A lightweight scrim layer sits between the foam and the cover to keep everything breathing. Built to Stay Cool, Stay Clean The soft, ventilated outer shell pulls heat away from your face and neck, helping you sleep cooler through the night. When it's time for a refresh, the pillow case and outer cover unzip and go straight into the washing machine. The foam core itself should never be washed. Made for Side Sleepers, By Side Sleepers Pillow Cube was founded on a simple frustration: traditional pillows weren't designed for the way most of us actually sleep. The Side Cube Riser Deluxe is the most generous version of that idea — the full cube shape, the full range of height adjustment, and enough surface area that you never have to hunt for the sweet spot in the middle of the night. Patent-pending modular design – Two removable 1" risers for true height customization. Three custom heights – Adjust between 3", 4", or 5" to match your body and mattress. Dimensions – 14" W × 28" L × 5" H (fully stacked); approximately 2.5 lbs. Roughly 35% more surface area – Compared to the standard Side Cube Riser (12" × 24"). Premium AeroFoam fill – Breathable, precision-cut viscoelastic polyurethane that holds its shape. Soft, breathable cover – Pillow case and outer cover are removable and machine washable. One pillow. Three heights. Room to move.Add the Side Cube Riser Deluxe to your sleep setup and find out what proper side-sleeper alignment was supposed to feel like.