# How to Choose a Pillow: Shape, Size and Cover Care

> A practical guide to choosing a pillow, covering dimension comparisons, component care labels, height adjustments, and return terms.

Canonical: https://mizaanhome.com/en-us/guides/how-to-choose-a-pillow/
Last updated: 2026-10-05

**Verdict:** Start with what you like about your current pillow: its height, shape and feel. Use those preferences to compare listed dimensions, check whether you want adjustable fill and look for care instructions that fit your routine. A removable washable cover is a useful detail to consider.

---
![Two pale-blue and white Derila Ergo contour pillows against a beige upholstered headboard.](https://mizaanhome.com/images/products/derila-ergo/derila-ergo-bedroom-supplier.jpg)

*Seller photograph, Derila. The picture shows two pillows; pack quantity depends on the offer you select.*

We may earn a commission from our links; this guide is based on published information, not hands-on testing.

## Five practical steps for selecting a pillow

When evaluating pillows online, focus on measurable product specifications and practical order details:

1. **Note personal baseline preferences**: Measure the length, width, and height of your current pillow. Note whether you prefer a higher or lower profile, and record how your current pillow feels as a comparison reference.
2. **Compare listed dimensions**: Compare your baseline against seller-published measurements and your existing pillowcases. Dimensions are comparison aids rather than a prescription or guarantee of personal comfort.
3. **Check for height adjustment**: Verify whether a listing confirms adjustable loft, such as removable foam layers or shredded fill. If height adjustment matters to you, confirm the model supports it before ordering.
4. **Identify component care labels**: Check whether care instructions apply to the outer textile cover, an inner liner, or the foam insert itself. Washing instructions for outer covers cannot be assumed to apply to interior foam cores.
5. **Review order details and return terms**: Verify pack quantities, item subtotals, selected extras, and return policies before completing an order.

## Dimensions, loft, and foam expansion

**Loft means height; firmness means resistance to compression.** Two pillows with the same advertised height can feel different under your head. Compare them on the mattress you use, rather than treating a fixed inch range as a prescription.

Your starting questions are simple: Do you usually sleep on your side, back or stomach? Does your current pillow feel too high, too low or just uncomfortable in shape? Does your shoulder sink into the mattress? These details help you compare designs without assuming that one sleeping-position label fits everyone.

| If you want... | Look for... |
|---|---|
| To change the height | Explicitly removable fill or layers in the exact model |
| A consistent shaped outline | A molded contour whose center and sides you can compare |
| A pillow you can reshape | A construction described as moldable, with suitable care instructions |
| Easy wash-day care | Clear instructions for the cover and the filling separately |

For example, the [Derila Ergo guide](https://derila-ergo.com/user-guide?l=en) lists 54 x 36 x 12 cm and 6 to 8 hours of expansion after unpacking. Those are product dimensions and setup instructions. They do not establish compressed sleeping height, personal comfort or adjustable fill.

## Care, hygiene, and maintenance

Keeping a pillow fresh requires adhering to proper laundry guidelines:

- **Removable covers**: Look for pillows with zippered outer covers that provide specific washing instructions.
- **Foam core care**: Cleaning rules for foam cores vary by manufacturer. Always inspect the product care label upon receipt or consult the seller rather than assuming the insert is washable.

## Compare the options

For a butterfly-shaped memory foam option, our [Derila Ergo review](/en-us/reviews/derila-ergo-pillow/) brings together its published dimensions, cover-care instructions and available packs. If height adjustment is essential to you, confirm that feature with the seller before choosing a model.

## Related resources

- [Pillow Buying Guide in the USA](/en-us/best/best-pillow/)
- [Derila Ergo Prices in the USA](/en-us/prices/pillow-prices/)
- [Derila Ergo Pillow Review](/en-us/reviews/derila-ergo-pillow/)
- [Contour Pillow Buying Checklist](/en-us/blog/contour-pillow-buying-checklist/)
- [All Pillows Resources](/en-us/pillows/)

## Continue reading

- [Pillow Buying Guide: Shape, Size and Everyday Care](https://mizaanhome.com/en-us/best/best-pillow/)
- [Derila Ergo Prices: Compare Single and Multi-Pillow Packs](https://mizaanhome.com/en-us/prices/pillow-prices/)
- [Derila Ergo Pillow Review: Contour Design, Size and Care](https://mizaanhome.com/en-us/reviews/derila-ergo-pillow/)
- [Contour Pillow Checklist: Choosing, Unpacking and Care](https://mizaanhome.com/en-us/blog/contour-pillow-buying-checklist/)
- [Pillows](https://mizaanhome.com/en-us/pillows/)