Sonik Bank-Tek Layerz All-Season Sleep Bag Wide 100% Polyester

Sonik Bank-Tek Layerz All-Season Sleep Bag Wide — Year-Round Comfort on Wide Bivvy Beds

Built specifically for wide bivvy beds, the Bank-Tek Layerz All-Season Sleep Bag Wide adapts to every season thanks to its reversible, removable inner blanket — giving you a single bag that handles everything from warm summer nights to cold winter sessions.

Adaptable Warmth in Any Season

The double-layer construction features a reversible inner blanket that lets you choose between fleece or smooth lining and dial in the right warmth level without carrying multiple bags. The silicone-treated hollow-fibre fill retains loft session after session, while the microfleece-lined upper combined with a smooth base keeps you warm on top and lets you move freely underneath.

Designed for Bankside Comfort and Convenience

A redesigned hood with generous movement allowance adjusts around you regardless of your preferred sleeping position. Drawcords at both head and foot zones seal out cold spots, while a smooth neck panel adds a refined finishing touch. A fold-out mosquito net over the head zone is a quiet but welcome feature on still summer nights. Inner hand-warmer pockets, a pillow-retention hood with effective drawcord compression, and oversized No. 10 coil zips with wide anti-snag guides round out a bag built for serious bankside use. A full compression sack is included for compact carry.

Choose the Right Variant

The Bank-Tek Layerz All-Season Sleep Bag is currently available in one configuration:

• Sonik Bank-Tek Layerz All-Season Sleep Bag Wide — 100% Polyester: Sized for wide bivvy beds, all-season rating with reversible inner blanket. Ideal for carp anglers who fish year-round and want one versatile bag that covers every condition.

Facts

• Material: 100% Polyester

• Outer shell: water-resistant 190T Ripstop fabric

• Fill: silicone-treated hollow-fibre

• Double-layer construction with reversible/removable inner blanket

• Choice of fleece or smooth inner lining

• Microfleece-lined upper, smooth base

• Oversized No. 10 coil zips with anti-snag guides

• Drawcord closures at head and foot zones

• Fold-out mosquito net (head zone)

• Inner hand-warmer pockets

• Pillow-retention hood

• Removable elastic centre strap

• Includes full compression sack

• Designed for wide bivvy beds