Fine-tune your GoldilockZzz pillow anytime. These Tri Core refill inserts are made to work with Tri Core Interchangeable Technology, so you can adjust loft, feel, and support by swapping cores, stacking them differently, or refreshing your setup over time.

Memory Foam:

Want that steady, supportive feel that holds its shape night after night? The Memory Foam Core Insert adds a more structured level of support to your GoldilockZzz pillow. It gently contours under your head and neck while helping reduce the “too flat” feeling that comes from softer fills. Use it to build a higher loft, add more support, or balance out a plush setup so your pillow feels stable, not squishy.

Best for: Side sleepers, back sleepers, anyone who wants more support
Feel: Supportive, contouring, stable

Poly Core

The Poly Core Insert is the everyday comfort builder. It adds loft and cushion with a soft, responsive feel that is easy to sleep on and easy to customize. If you like a pillow that feels cozy but not heavy, this core helps you dial in that “just right” middle ground. Use it on its own for a lighter feel, or pair it with the foam core when you want softness with structure.

Best for: Combo sleepers, anyone who likes a balanced feel
Feel: Soft, springy, adjustable

Synthetic Down

Love that plush, hotel-style cloud feel? The Synthetic Down Core Insert is the softest option in the Tri Core lineup. It adds a cozy, sink-in layer that feels gentle and luxurious while still helping your pillow look and feel full. It’s perfect for sleepers who want softness first, or for layering on top of a supportive core to create a pillow that feels both plush and stable.

Best for: Plush lovers, stomach sleepers who need lower support, anyone who wants extra softness
Feel: Ultra-soft, airy, cozy