Best Alaskan King Bed Sheets for Extra-Large Mattresses
Finding the right sheets for an Alaskan King bed can be challenging due to the extra-wide and extra-long dimensions. This guide highlights five high-quality options designed to fit oversized mattresses, stay in place, and provide comfort across seasons. Each product includes deep pockets, luxurious fabrics, and robust construction to prevent slipping or bunching. Read on to compare features and discover practical considerations for choosing the best Alaskan King sheet set for your sleep space.
| Product | Brand |
|---|---|
| Alaskan King Sheets 108 x 108 – 4 Piece Luxury Alaskan King Sheet Set | CGK Unlimited Store |
| HOMBYS 132″x120″ Alaska King Size Sheet Set | HOMBYS Store |
| SGI Bedding 108″x 108″ 4 Pc Alaskan King Sheet Set 1000 Thread Count | SGI Bedding Store |
| LBRO2M 100% Linen Sheet Set King Size | LBRO2M Store |
| HOMBYS 132″x120″ Alaska King Size Sheet Set | HOMBYS Store |
Alaskan King Sheets 108 x 108 – Luxury 4-Piece Set

The Alaskan King Sheets 108 x 108 set from CGK Unlimited Store delivers a complete 4-piece configuration tailored for Alaskan King mattresses. Included are two pillowcases (20” x 40”), a flat sheet (125” x 125”), and a fitted sheet (108” x 108”). The design emphasizes exclusivity and functional fit for deep mattresses, ensuring comfort and stability through the night.
These sheets promise a plush, soft touch with a secure fit that minimizes shifting. The deep pockets are designed to accommodate mattress depths from 10 to 16 inches, aligning with standard oversized beds. Consumers benefit from a combination of luxury feel and practical sizing, suitable for families or shared sleeping spaces seeking generous sheet coverage.
HOMBYS 132″x120″ Alaska King 4-Piece Set

This 4-piece HOMBYS set includes a fitted sheet (108″ x 108″ with an 18″ depth), a flat sheet (120″ x 132″), and two pillowcases (20″ x 40″). The product is designed to fit mattresses up to around 16 inches deep, using a deep pocket and elastic to secure the sheets in place. It is marketed as an oversized option suitable for California king beds and larger configurations, delivering a smooth, comfortable surface for all-season use.
Users can expect easy handling due to the generous measurements and a secure fit that resists wrinkling and shifting. The set’s large dimensions make it a practical choice for families or shared sleep spaces that require substantial sheet coverage without frequent adjustments during the night.
SGI Bedding 108″x 108″ 4 Pc Alaskan King Set

SGI Bedding offers a 4-piece Alaskan King sheet set crafted from 1000-thread-count Egyptian cotton. This premium fabric is soft, durable, and breathable, lending a hotel-like feel to the bed. The set includes a flat sheet (144″ W x 124″ L), a fitted sheet (108″ W x 108″ L) with 18″ pockets, and two pillowcases (20″ W x 40″ L). The combination aims to provide full coverage for oversized mattresses and secure fit through nightly movement.
The fabric’s breathability is highlighted to promote sleep comfort across seasons. The deep pockets and elasticized edges help keep the sheet in place, while the high thread count contributes to a luxurious, smooth surface that remains comfortable after multiple washes.
LBRO2M 100% Linen King Sheet Set

LBRO2M’s 100% linen sheet set focuses on climate adaptability and durability. The set is described as fully elasticized with deep pockets up to 16 inches, designed to stay in place on oversized mattresses. Linen is known for moisture management and temperature regulation, making these sheets a strong option for all-season comfort. The natural fiber brings a breathable, crisp feel and becomes softer with every wash, contributing to long-term comfort and sustainability.
As an all-season option, linen can provide a cooler sleep surface in warmer months and warmth in cooler months. The product emphasizes skin-friendly properties and a durable construction that resists pilling, offering a long-lasting choice for oversized beds where sheet movement is a common concern.
HOMBYS 132″x120″ Alaska King 4-Piece Set (Second Listing)

The second HOMBYS listing provides another comprehensive 4-piece set with the same oversized dimensions and deep-pocket design. It mirrors the earlier product’s concept—fitted sheets with 18-inch pockets, a large flat sheet, and pillowcases designed for large-scale mattresses. The emphasis remains on a secure fit, easy handling, and a luxurious, soft surface suitable for maximum bed coverage.
Comparable benefits include ease of care and a design tailored to prevent shifting and wrinkling during sleep. This option reinforces the versatility of HOMBYS offerings for Alaska King setups, ensuring consumers have alternatives within the same brand family to match personal texture and fit preferences.
Buying Guide
- Sheet material: Consider cotton, Egyptian cotton, and linen for comfort, breathability, and durability. Egyptian cotton with a high thread count provides a hotel-like feel, while linen offers temperature regulation and a crisp finish.
- Pocket depth: Look for mattresses with pockets deep enough to stay secure. Most Alaska King beds require pockets around 18 inches, but always verify your mattress depth (10–16 inches is common) to ensure a snug fit.
- Size accuracy: Oversized sets should clearly specify flat sheet width and length, fitted sheet dimensions, and pillowcase sizes to avoid coverage gaps on very wide beds.
- Care and durability: Pre-washed or easy-care fabrics minimize shrinkage and maintain fit after multiple launderings. Consider fabrics that become softer after washing for long-term comfort.
- All-season suitability: For hot climates, breathable fabrics like cotton or linen are advantageous. For cooler climates, consider thicker cotton or blends that retain warmth without sacrificing airflow.
- Maintenance considerations: Deep-pocket sheets with elastic all around the edge help prevent slipping. Some sets include reinforced elastic bands to extend sheet life and improve fit on heavy or flexible mattresses.
- Budget-to-value balance: Premium materials (1,000+ thread count cotton or 100% linen) offer superior feel and longevity, but mid-range options can still deliver solid performance for everyday use on Alaskan King beds.
When selecting an Alaskan King sheet set, align fabric type, pocket depth, and overall dimensions with your mattress profile and sleeping preferences. For households sharing large beds, prioritize sets that emphasize secure fit and wrinkle resistance to minimize nightly adjustments and maintain a clean, inviting sleep surface. Evaluating fiber quality, weave, and true measurements will help ensure the sheets perform well over time.