Arknights Endfield Sanity Supply Guide: Free Sanity, Dates & Best Farming Plan
The Arknights Endfield Sanity Supply event returns from July 9 to July 16, 2026, offering daily Emergency Sanity Boosters and Sanity Usage Permits. This guide covers server-specific dates, mission requirements, how to use Permits for double rewards, and the most efficient farming plan to make every point of Sanity count.
🔋 What Is the Sanity Supply Event?
Free Sanity and Double Reward Efficiency
The Sanity Supply event is a recurring limited-time distribution event in Arknights Endfield that rewards players with free Sanity recovery items and farming efficiency boosters for completing daily missions. Unlike standard login events, Sanity Supply requires active daily participation — you must complete three specified missions each day, then manually claim your rewards from the event screen.
The event delivers two types of items: Emergency Sanity Boosters that instantly restore Sanity, and Sanity Usage Permits that let you consume double the Sanity for double the rewards. The Sanity Usage Permit is the real star of the event — each Permit doubles your rewards per Sanity spent at a 1:10 ratio, making it one of the most efficient farming tools available in Arknights Endfield.
Event Dates and Server Schedule
The Sanity Supply event runs across all servers, but end times differ between regions:
America and Europe servers end approximately 11 hours earlier than the Asia server. Daily missions and their rewards reset at 04:00 server time each day. Rewards must be claimed before the next daily reset — missed claims cannot be recovered.
🎯 Daily Missions and Rewards
Daily Mission Requirements
Each day, three Sanity Supply missions become available. These missions typically mirror standard daily activity tasks that most players complete as part of their regular routine. From previous Sanity Supply events, the missions generally include:
Log in to the game
Complete a Protocol Space stage
Perform an operator upgrade (leveling, skill training, or ascension)
These missions are designed to overlap with the standard daily Activity Point checklist, meaning you can earn Sanity Supply rewards without deviating from your normal daily gameplay. Completing all three missions unlocks the daily reward claim on the event screen.
Sanity Usage Permit — Double Sanity, Double Rewards
The Sanity Usage Permit is a unique farming accelerator. When activated, it consumes double your Sanity cost and yields double the rewards at a rate of 1 Permit for every 10 Sanity spent. For example, if a Protocol Space stage costs 30 Sanity, you would spend 60 Sanity and 3 Permits — but receive double the drops.
This makes Permits ideal for:
Protocol Space farming — double Essence and material drops
T-Cred stages — double credit income per run
EXP material stages — faster operator leveling
Note that Sanity Usage Permits have an expiration timer. Once claimed from the event screen, check the item details in your inventory for the exact expiry date and use them before they disappear.
Emergency Sanity Booster — Instant Sanity Recovery
The Emergency Sanity Booster instantly recovers a fixed amount of Sanity upon use. According to the Arknights Endfield Wiki, each Booster restores 40 Sanity. Like the Usage Permit, Boosters also carry an expiration timer — typically 7 days from the date claimed from your in-game mail or event screen.
Sanity recovery via Boosters can push your Sanity above the maximum cap, so there is no need to wait until your Sanity is empty before using them.
🗺️ Best Farming Plan During Sanity Supply
Priority 1: Protocol Space with Sanity Usage Permits
Protocol Space should be your primary Sanity sink during the event. As detailed in the Arknights Endfield daily routine guide, Protocol Space is the most efficient Sanity-to-progress conversion in the game — offering predictable, targeted material drops for operator development.
During Sanity Supply, pair your Permits with Protocol Space stages that drop materials you actively need. The double-reward mechanic means every Permit used here effectively cuts your farming time in half. Prioritize stages that drop:
Class-specific Essence for your current core operators
Skill Summaries for skill level upgrades
LMD-equivalent T-Creds if you are credit-starved
Priority 2: T-Creds and EXP Materials
If you have exhausted your immediate Essence needs or are building a new operator from scratch, T-Cred stages and EXP material stages are the next best targets for Permit usage. T-Creds are consumed by virtually every progression system — leveling, skill training, ascension, and base upgrades — making them the safest long-term investment.
Check your current operator roster and identify which EXP material type you need most: Tactical Battle Records for general leveling, or class-specific EXP items that offer bonus experience for matching operators.
Priority 3: Operator Ascension Materials
Open-world ascension material gathering is another strong use of Emergency Sanity Boosters, especially if you are close to an ascension threshold. Materials in the open world refresh daily, and each node drops a finite amount. Use Boosters to replenish Sanity after clearing material nodes rather than waiting for natural recovery.
💡 Tips to Maximize Your Sanity Supply Event
Never Let Sanity Overflow
Sanity regenerates at a rate of 1 point every 6 minutes, or 10 points per hour (240 per day). Once your Sanity hits the maximum cap — which starts at 135 and increases with your Authority Level — regeneration stops entirely. Every minute spent at cap is wasted Sanity.
During Sanity Supply, the influx of Boosters and Permits means you have even more Sanity to spend. Log in at least twice per day: once to complete daily missions and claim event rewards, and once to burn through accumulated Sanity in Protocol Space before hitting the cap.
Complete 100 Activity Points Daily
The daily Activity Point chest at 100 points rewards you with 200 Oroberyl, 1,150 Operational EXP, an Emergency Sanity Booster, and 2,000 T-Creds. This Bonus Booster stacks on top of Sanity Supply rewards, further accelerating your farming.
A quick daily routine to hit 100 Activity Points:
Gift an operator (1-2 minutes)
Perform any upgrade (1 minute)
Spend Sanity in Protocol Space (5 minutes)
Collect Outpost and Ship outputs (2 minutes)
The entire daily loop takes under 10 minutes and rewards you with a bonus Sanity Booster every day — effectively doubling your event payout.
Use Vacation Tags Strategically
Vacation Tags are Arknights Endfield's "catch-up" mechanic. If you cannot reach 100 Activity Points on a given day, you retain one Vacation Tag (up to a maximum of 3). Using a Vacation Tag grants double Battle Pass experience on subsequent days without reducing your daily rewards.
During Sanity Supply, if real life prevents you from completing all three missions, prioritize claiming the daily event rewards first — then use Vacation Tags later to catch up on Battle Pass progress without penalty.
💰 Top Up Oroberyl for Extra Sanity Refreshes
Arknights Endfield allows players to exchange Oroberyl for Sanity refreshes, letting you push even further during the Sanity Supply event. If your Oroberyl reserves are running low, topping up Oroberyl through Topuplist gives you the extra currency needed to sustain heavy farming sessions. Topuplist offers competitive rates on Arknights Endfield top-ups with instant delivery across all servers — so you can spend less time managing your wallet and more time clearing Protocol Space with double rewards.
❓ Frequently Asked Questions (FAQ)
Q: When does the Sanity Supply event start and end?
A: The event runs from July 9, 2026 at 04:00 to July 16, 2026 at 04:00 (Asia server) or July 15 at 17:00 (America/Europe server). All times are server time.
Q: How many missions do I need to complete each day?
A: Three Sanity Supply missions become available each day. Complete all three, then claim your rewards from the event screen. Rewards expire at the next daily reset (04:00 server time) and cannot be recovered if missed.
Q: What do Sanity Usage Permits do?
A: Sanity Usage Permits allow you to consume double Sanity and receive double rewards from Sanity-consuming game modes. Each Permit covers 10 Sanity worth of consumption. They are best used in Protocol Space for maximum farming efficiency.
Q: How much Sanity does an Emergency Sanity Booster restore?
A: Each Emergency Sanity Booster restores 40 Sanity and can push your Sanity above the maximum cap. Boosters expire 7 days after being claimed.
Q: Can I save event rewards for later?
A: Yes, but only within the expiration window. Claimed Emergency Sanity Boosters and Sanity Usage Permits remain in your inventory for their stated duration (typically 7 days). Use them before they expire.
Q: Do Sanity Supply missions overlap with regular daily activities?
A: Yes, the event missions are typically the same tasks you complete for your daily Activity Points — logging in, clearing Protocol Space, and performing operator upgrades. You can earn both event and daily rewards simultaneously.
Q: Should I use Permits on T-Cred stages or Protocol Space?
A: Protocol Space offers the highest value per Permit because of targeted Essence and material drops. T-Cred stages are a strong secondary option if you need credits urgently for operator upgrades.
Q: Does Sanity regenerate while I am offline?
A: Yes, Sanity regenerates at 1 point every 6 minutes (10 per hour, 240 per day) regardless of login status. Make sure to log in before your Sanity hits the cap to avoid wasting regeneration.
