在入秋前考虑升级我的徒步装备。正在纠结是买一顶轻量化双人帐篷，还是把这笔钱投入到更好的睡垫+被式睡袋组合上。对于做过多日徒步的人来说，哪种升级对你的舒适度提升最大？
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Thinking about upgrading my hiking setup before autumn. Torn between a lightweight 2P tent and investing that money into a better sleeping pad + quilt combo. For those who’ve done multi-day trips, which upgrade improved your comfort the most?