Based on this product's specifications, here are some alternatives and similar models
Mummy sleeping bag VAUDE Sioux 400 II XL — recycled polyester, 2350×850 mm, for users up to 205 cm
Summary description:
VAUDE Sioux 400 II XL is a mummy-style adult sleeping bag made from recycled polyester. Dimensions: 2350 mm length and 850 mm shoulder width; suitable for users up to 205 cm. Compactly packable (package width 400 mm, length 20 cm). Designed for camping and trekking where a long, narrow insulated bag with lightweight synthetic fill is required.